Improvement in draft-equalizers



D. P; HERSHBERGER. DraftjEqualzer.

No. 219,260; ,Patented sept. 2,1879.

UNITED STATES PATENT OEEIoE.

DANIEL P.HERSHBERGER, OF GOSHEN, INDIANA.

IMPROVEMENT IN DRAFT-EQUALIZERS.

Specification forming part of Letters Patent No. 2l 9,260, dated September 2, 1879; application filed May 16, 1879.

To all whom it may conce/rn:

Be it known that I, DANIEL P. HERsH- BERGER, of Goshen, in the county of Elkhart, in the State of Indiana, have `invented an Improvement in Draft-Equalizers, of which the following is a specification.

The nature of my invention relates to new and useful improvements in that class of devices which are employed to alloT three horses as more'full y hereinafter described.

Figure l is a plan Vview of my improved equalizer. Fig. 2 is afrontview of the tongue with brace attached. Fig. 3 is a detached perspective view of the brace and clevis by means of which the main evener is attached to the' tongue.

In the accompanying drawings, which form a part of this specification, A represents an ordinary two-horse ervener,` pivotally secured by the bolt a, to the outer end of the brace B. This brace is bifurcated to embrace the tongue O, to Which it is adjustably secured by a bolt passing through one of the perforations b and the tongue. These perforations, being coincident in both legs of the brace, allow the latter to be lengthened or shortened at will, or as occasion may require. rIhe bolt a also piv` otally secures the' clevis D, which is provided with a loop, c, which embraces the end of the brace. A chain, E, attachedto the loop of the clevis,leads rearward to anyconvenient point, where it is adjustably secured in such manner that it may be lengthened or shortcned, as the position of the brace may require. To the outer ends of the evener A are attach ed the clevises, and to each of these clevises is attached a lever, F F', so that the longer arms of each project inwardly. These levers are 4of equal length, and to their inner ends is secured, by suitable links, a whiffletree, G. To the outer and shorter ends of these levers are attached the whiftletrees H. A -bevel shield, of metal, is secured by the bolt a to the front edge of the evener A, to prevent the inner ends of the levers from resting against the evener in case they should be thrown back so far Uy the unequal draft of the outside horses, and guide such ends up the incline of the guard above the evener. This movement will at all times prevent the center horse from shirking his Work.

By this construction great strength and certainty in result are obtained, and a lateral adjustability secured, by which the device can.

be successfully applied to all kinds of work where equalizers of this character are reA quired.

In order-to give either horse any advantage Athat may be necessary to give to either of the outside horses, the clevises at the outer ends of the levers are adjustable to or from their fulcrum.

What I claim as my invention, and desire to secure by Letters Patent, is

l. In draft-equalizers, the clevis D, provided` l with a loopc, which embraces the outer end of the bracearm B, in combination with the evener A and chain E, substantially as speciiied.

2. In draft-equalizers, the bevel shield, in combination with the evener A, levers F F', and wbifdetrees G H, substantially as and for the purposes set forth. l

3. Adraftequalizer consisting of the evener A, brace-arm B, tongue C, clevis D, chain E, levers F F', and whiftletrees G H, the parts being constructed, arranged, and operating.l

substantially as described.

DANIEL P. HERSHBERGER. Witnesses:

H. S. SPRAGUE, THEO. S. DAY. 

